Ofbiz Nutshell

5/20/2018 Ofbiz Nutshell

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Open For Business in a NutshellOpen Source Foundations for Enterprise Applications

Si Chen

Open Source Strategies, Inc.


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Open Source Project for Enterprise

Applications (ERP/CRM/MRP)

Applications Development Framework

Data Model

Applications

What is OFBiz?

2005 Open Source Strategies, Inc.


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www.ofbiz.org

Began in 2001

International Developer Community C

Enterprise-Class Features

More about OFBiz



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Is OFBiz for me?

Applications & Capabilities

Underlying Technologies

Developing and Deploying OFBiz

Presentation Outline



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Accounting Inventory &

Warehouse

Customer

Service

Product

Catalogs

eCommerce

Content

Mgmt

Manufacturing Marketing Order Entry Point Of

Sales

OFBiz Applications



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Products and Stores

Product Store WebsitePOS

Catalogs

Categories

Products

Product Variants

Product Features



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eCommerce Highlights

Multiple stores

Custom catalogs and pricing

Price and Promotion Rules

Associations: upsell/cross-sell/substitution

Site search and product reviews



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Order Manager

Create and manage orders

Quotes: create quotes, get bids, convert to

orders Returns: create, approve, receive returns

Purchasing: multi-vendor, multi-currency



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Inventory and Warehouse

Multiple facilities

Receive inventory

Track locations Serialized vs. non-serialized inventory

Shipments

Create shipments

Pick & Pack

Carrier Integration



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Point Of Sales (POS)

Based on JavaPOS

Independent POS station

Web-enabled synchronization with store and

corporate servers



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Other Applications

Blogs, wikis, surveys in Content

Billing accounts, payment gateways in Accounting

Material resource planning in Manufacturing

Affiliate, PPC campaigns in Marketing People and Security in Party Manager



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Presentation Business Logic Data

Model-View-Controller

Decorator pattern

Templates vs actions

Meta-programming

Tomcat, Jetty

Freemarker, FOP

JasperReports

JavaPOS, XUI

beanshell

Service Oriented Architecture

Web Services (SOAP/XML)

Scripting languages

Meta-programming

XML Data Modeling

Persistence

Database Independence

Meta-programming

Axis

BSF

beanshell

JOTM

XAPool

Minerva

Derby

JDBC

FrameworkXerces

Lucene

Log4j

Jakarta Commons

Xalan

ORO

Javolution

POI

The OFBiz Framework



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Framework Highlights

Platform and DB Independent

Highly Versatile Development Style

Plug-In Architecture: add new apps easily

Mutually Aware Tiers



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In the Beginning...

OFBiz (~ 2002)

JSP

Decorator

Pattern

ControllerEvents

Servlet

Helper

Class

Delegator/

Entity

Engine

DB


Followed Core J2EE Patternsbook

Lots of repetitive code in Events and Helpers


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OFBiz Architecture Today

JSP

Decorator

Pattern

OFBiz Today (2005)

Screen

Widgets Controller

Entity Engine

Service

Engine

Services Entity

Engine


Entity Engine

Much better code re-use with Service

Oriented Architecture


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Architectural Comparison: PHP/Perl

DatabaseUser

$x = $_POST[X];

SELECT ... FROM ... WHERE ...;

person[firstName] = ...;

UPDATE ... SET ... WHERE ....;

echo ...;



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Architectural Comparison: Java

User Database

Business TierObjects

Servlet Class Persistence

Class



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Architectural Comparison: OFBiz

Services

generic screens

generic forms

HTML, XSL:FO, XUI

controller

generic business logic

define in XML

Java, scripting languages

SOAP, RMI

Dispatcher API

Screens

Entitiesdata model defined in XML

GenericDelegator API

GenericValue API

Database Independent

Workflow

SECA

XPDL

User

Database



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Java Persistence Frameworks

Model data as classes with fields and accessors

Map fields from Java to SQL

Auto-generate Java and SQL code



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OFBiz Persistence Framework

Entity: small unit of data model

Key/value pairs

Related to other entities

Declared in XML file

Found by delegator Generic class with get, set, store methods



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Using the Entity Engine

Modeling the Data:

Entitymodel.xml, entitygroup.xml

Interfacing the Database: Entityengine.xml, fieldtype.xml, cache properties

Accessing the Data:

Generic Delegator

Generic Entity / Generic Value



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Business Logic: The Service Engine

Service: small unit of business logic

Central clearinghouse of business logic. API layer

Service

Engine

Entity Engine

Controller

Services

Workflow

Java

Scripts(Jython, BSH, JRuby, simple XML)

SOAP

RMI

Workflow



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Service Engine Highlights

Defined in services.xml

Accessed via Generic Dispatcher

Map in, Map out

Built-in transactions

Exception handling using Map fields



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Services Maximize Code Reuse

Linked together in SECA or XPDL workflow

Directly plugs into controller: no parsing needed

Automated form generation



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Presentation Layer

View

JSP

Freemarker/

Beanshell/

JPublish

Screen/Form/

Menu/Widgets

Controller

Handlers

Requests

Views

Model

Events &Helpers

Services

Servlets



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Developing with OFBiz

Data Model Entities

Business Logic Services

SECAs

Workflow

User Interface FTL

Form Widget

Screen Widget

Controller



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Developing Efficiently with OFBiz


Use existing data model, business logic

Use services

Prototype with beanshell


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Deployment Possibilities

Single Instance

Tomcat Jetty Apache

OFBiz

DB

OS



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Failover

synch



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Load Balancing

OFBiz

ApacheApache

DB DB



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Multi-Store

corporatePOS

POSPOS web

web


Built-in synch allows scaling out or up


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Flexible

Scalable

Strong development model

Growing community

Why We Chose OFBiz



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Try it out

Developers' InstallFests

Read the tutorials

Next Step


www.opensourcestrategies.com/ofbiz


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OFBiz SoCal

Developers

Service ProvidersUsers



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